Electrical mathQuestion 896 of 1506

Three inductors of 120 mH, 80 mH and 50 mH are connected in series. What is the total inductance?

  1. 250 mH
  2. 23.9 mH
  3. 125 mH
  4. 12.5 mH
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Correct answer: 250 mH

Series inductances add: 120 + 80 + 50 = 250 mH.

Source: Lessons in Electric Circuits I: DC (Kuphaldt), 15.4: Series and Parallel Inductors

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Questions last reviewed: 18 October 2026